piston rings

Hi! Look at my photos. What can you say about the condition of this piston rings? In the manual is written that piston rings must be 0,020 mm ÷ 0,052 mm (0,055 mm) but the max. allowed wear limit is of 0,10 mm! Why such a spread? Between 0.052 mm (or 0,055 mm) and 0,10 mm huge difference! Or I...